Ok, so let's start with the Batt connector. I'm assuming it's for the RTC, as such, is it 3V, 6V, etc? I have found a nice 3.7V LiPO battery with a JST connector already installed, so this seems like a nice fit if the 3.7V is ok. Also, is the Batt connector able to provide a charging current as well, or not? Now, the DC-IN. I'm assuming that's a battery connection for the board, so probably 12V? Also, is it capable of charging an attached battery?